Noun addition, growth
Synonyms: access, accession, accretion, accrual, accumulation, aggrandizement, augmentation, boost, breakthrough, burgeoning, cumulation, development, elaboration, enlargement, escalation, exaggeration, expansion, extension, gain, hike, incorporation, increment, inflation, intensification, maximization, merger, multiplication, optimization, raise, rise, spread, step-up, surge, swell, swelling, upgrade, upsurge, upturn, waxing
Antonyms: decrease, depletion, diminishment, loss, subtraction
Verb add or grow
Synonyms: advance, aggrandize, aggravate, amplify, annex, augment, boost, broaden, build, build up, deepen, develop, dilate, distend, double, enhance, enlarge, escalate, exaggerate, expand, extend, further, heighten, inflate, intensify, lengthen, magnify, mark up, mount, multiply, pad, progress, proliferate, prolong, protract, pullulate, raise, redouble, reinforce, rise, sharpen, slap on, snowball, spread, step up, strengthen, supplement, swarm, swell, tack on, teem, thicken, triple, wax, widen
Antonyms: decrease, deplete, diminish, lose, subtract